> > The script:
> > au TabEnter * call TabEnterFunc()
> > au TabLeave * call TabLeaveFunc()

> > func! TabEnterFunc()
> >    echo 'Enter: ' . tabpagenr("$")
> >    sleep 1
> > endfunc

> > func! TabLeaveFunc()
> >    echo 'Leave: ' . tabpagenr("$")
> >    sleep 1
> > endfunction

> > If a new tab is created with:
> > :tabnew
> > the prints are,
> > Leave: 1
> > Enter: 2
> > (i.e, the number of tabs on TabEnter is one more than when TabLeave
> > triggered). This is good.

> > But when we quit a tab with :q, we get,
> > Leave: 2
> > Enter: 2

> > Shouldn't the number of buffers as returned by tabpagenr("$") be
> > up-to-date by the time TabEnter gets triggered?

> > :version
> > VIM - Vi IMproved 7.2 (2008 Aug 9, compiled Aug  9 2008 18:46:22)
> > MS-Windows 32-bit GUI version with OLE support
> > Compiled by Bram@KIBAALE
> > Big version with GUI.

> > On Thursday, June 7, 2012 9:09:16 AM UTC-5, Karthick wrote:
> > > I tried doing this and ran into an issue..

> > > The script:
> > > au TabEnter * call TabEnterFunc()
> > > au TabLeave * call TabLeaveFunc()

> > > func! TabEnterFunc()
> > >    echo 'Enter: ' . tabpagenr("$")
> > >    sleep 1
> > > endfunc

> > > func! TabLeaveFunc()
> > >    echo 'Leave: ' . tabpagenr("$")
> > >    sleep 1
> > > endfunction

> > > If a new tab is created with:
> > > :tabnew
> > > the prints are,
> > > Leave: 1
> > > Enter: 2
> > > (i.e, the number of tabs on TabEnter is one more than when TabLeave
> > > triggered). This is good.

> > > But when we quit a tab with :q, we get,
> > > Leave: 2
> > > Enter: 2

> > > Shouldn't the number of buffers as returned by tabpagenr("$") be
> > > up-to-date by the time TabEnter gets triggered?

> > > :version
> > > VIM - Vi IMproved 7.2 (2008 Aug 9, compiled Aug  9 2008 18:46:22)
> > > MS-Windows 32-bit GUI version with OLE support
> > > Compiled by Bram@KIBAALE
> > > Big version with GUI.

> Bram,
> the problem is, that enter_tabpage() is called when still both tabpages
> are valid (before freeing that tabpage), so tabpagenr() returns the
> wrong number in case of the :tabclose command.

> Attached is a patch, that fixes it.